Okay but there are better Visio apps out there – VSD Viewer for Visio Drawings Review

The offline conversion is nice if you don't have an iPad with 3G/4G on board or a mobile wireless hotspot, but it cannot process measurement/distance annotations properly (all show as 1"), which is critical for me since we use Visio for architectural and space planning. No other apps I have tried can do it offline either, but others offer an online mode which can correctly calculate the measurements. Otherwise an okay app.
Review by SoftPointMedia on VSD Viewer for Visio Drawings.